Nature & Environment
Animals at the extremes: hibernation and torpor
...adult bear's re-warming energy cost is 105 greater than that of a mouse and the energy required for re-warming is equivalent to the energy needed to remain euthermic for nearly 3 days (compared to 3 hours in the mouse). The importance of size is balanced by the importance of the habitat, and by the ability of animals to evolve their thermoregulatory strategy to match...